mysql column default value getdate

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mysql column default value getdate

Here is how to do it on MySQL 5.1: ALTER TABLE `table_name` CHANGE `column_name` `column_name` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP; I have no clue why you have to enter the column name twice. If you are trying to set default value as NOW(), I don,Unfortunately, however, only one auto-updated TIMESTAMP field can exist per .... For all those who lost heart trying to set a default DATETIME value in MySQL, ... , I use a trigger as a workaround to set a datetime field to NOW() for new ... a default DATETIME value in MySQL, I know exactly how you feel/felt.,The DEFAULT clause specifies a default value for a column. With one exception, the default ... column. http://dev.mysql.com/doc/refman/5.5/en/create-table.html. ,Probably you cannot set default value for 'date' data type in mysql. You need to change the type to timestamp or datetime. You may have a look at this similar ... , The Change column is oldval newval and the type make sure if your column name ... CHANGE COLUMN `date` `date` DATETIME DEFAULT ..., For the first TIMESTAMP column in a table, the default value is the current date ... of mysql where the default values are not allowed for datetime., 趕快來查一下MYSQL文件: "The DEFAULT value clause in a data type specification indicates a default value for a column. With one exception ...,Data type specifications can have explicit or implicit default values. ... The exception is that, for TIMESTAMP and DATETIME columns, you can specify the ... , You cannot set the default for a date column to be the value of a function ... As of MySQL 5.6.5, TIMESTAMP and DATETIME columns can be ...

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mysql column default value getdate 相關參考資料
How do you set a default value for a MySQL Datetime column ...

Here is how to do it on MySQL 5.1: ALTER TABLE `table_name` CHANGE `column_name` `column_name` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP; I have no clue why you have to enter the column name twice....

https://stackoverflow.com

Set NOW() as Default Value for datetime datatype? - Stack Overflow

Unfortunately, however, only one auto-updated TIMESTAMP field can exist per .... For all those who lost heart trying to set a default DATETIME value in MySQL, ...

https://stackoverflow.com

mysql - Set NOW() as Default Value for datetime datatype? - Stack ...

I use a trigger as a workaround to set a datetime field to NOW() for new ... a default DATETIME value in MySQL, I know exactly how you feel/felt.

https://stackoverflow.com

CURRENT_DATECURDATE() not working as default DATE value - Stack ...

The DEFAULT clause specifies a default value for a column. With one exception, the default ... column. http://dev.mysql.com/doc/refman/5.5/en/create-table.html.

https://stackoverflow.com

How to set default value of DATE (not DATETIMETIMESTAMP) column ...

Probably you cannot set default value for 'date' data type in mysql. You need to change the type to timestamp or datetime. You may have a look at this similar ...

https://stackoverflow.com

Add default value for date column - Stack Overflow

The Change column is oldval newval and the type make sure if your column name ... CHANGE COLUMN `date` `date` DATETIME DEFAULT ...

https://stackoverflow.com

Default value for DATETIME field - Stack Overflow

For the first TIMESTAMP column in a table, the default value is the current date ... of mysql where the default values are not allowed for datetime.

https://stackoverflow.com

[PHP]MYSQL自動加入Datetime方法| Shinyo - 點部落

趕快來查一下MYSQL文件: "The DEFAULT value clause in a data type specification indicates a default value for a column. With one exception ...

https://dotblogs.com.tw

MySQL :: MySQL 8.0 Reference Manual :: 11.7 Data Type Default Values

Data type specifications can have explicit or implicit default values. ... The exception is that, for TIMESTAMP and DATETIME columns, you can specify the ...

https://dev.mysql.com

timestamp - Can't default date to CURRENT_TIMESTAMP in MySQL 5.5 ...

You cannot set the default for a date column to be the value of a function ... As of MySQL 5.6.5, TIMESTAMP and DATETIME columns can be ...

https://dba.stackexchange.com